Find the area of the pinked shaded area?
10 cm
4 cm

First find the radius of the big circle
The diameter of the first circle + d of second smaller circle /2
(10*2)+(4*2)/2= 20+8/2 = 28/2 = 14 this is the radius of the biggest circle!
Now thaw we know the radius of the biggest circle we can subtract the area of it from the smaller two so:
(14^2 pi) - ( (10^2 pi) + (4^2 pi) ) = 80 pi = 251.32 cm^2

(Mark me the brainliest if this has helped)

I’m not absolutely sure but i think it’s 7x6x5x4x3x2=5040 because as the first character you can take any of the 7 given then you are left with 5 then 6 then 4 etc.